typedef struct Event Event;

typedef struct Event Event;
typedef struct Exec Exec;
typedef struct Message Message;
typedef struct Window Window;

enum
{
STACK = 8192,
EVENTSIZE = 256,
NEVENT = 5,
};

struct Event
{
int c1;
int c2;
int q0;
int q1;
int flag;
int nb;
int nr;
char b[EVENTSIZE*UTFmax+1];
Rune r[EVENTSIZE+1];
};

struct Window
{
/* file descriptors */
int ctl;
int event;
int addr;
int data;
Biobuf *body;

/* event input */
char buf[512];
char *bufp;
int nbuf;
Event e[NEVENT];

int id;
int open;
Channel *cevent;
};

struct Message
{
Window *w;
int ctlfd;
char *name;
char *replyname;
char *replydigest;
uchar opened;
uchar dirty;
uchar isreply;
uchar deleted;
uchar writebackdel;
uchar tagposted;
uchar recursed;
uchar level;

/* header info */
char *fromcolon; /* from header file; all rest are from info file */
char *from;
char *to;
char *cc;
char *replyto;
char *date;
char *subject;
char *type;
char *disposition;
char *filename;
char *digest;
char *flags;

Message *next; /* next in this mailbox */
Message *prev; /* prev in this mailbox */
Message *head; /* first subpart */
Message *tail; /* last subpart */
};

enum
{
NARGS = 100,
NARGCHAR = 8*1024,
EXECSTACK = STACK+(NARGS+1)*sizeof(char*)+NARGCHAR
};

struct Exec
{
char *prog;
char **argv;
int p[2]; /* p[1] is write to program; p[0] set to prog fd 0*/
int q[2]; /* q[0] is read from program; q[1] set to prog fd 1 */
Channel *sync;
};

extern Window* newwindow(void);
extern int winopenfile(Window*, char*);
extern void winopenbody(Window*, int);
extern void winclosebody(Window*);
extern void wintagwrite(Window*, char*, int);
extern void winname(Window*, char*);
extern void winwriteevent(Window*, Event*);
extern void winread(Window*, uint, uint, char*);
extern int windel(Window*, int);
extern void wingetevent(Window*, Event*);
extern void wineventproc(void*);
extern void winwritebody(Window*, char*, int);
extern void winclean(Window*);
extern int winselect(Window*, char*, int);
extern char* winselection(Window*);
extern int winsetaddr(Window*, char*, int);
extern char* winreadbody(Window*, int*);
extern void windormant(Window*);
extern void winsetdump(Window*, char*, char*);

extern void readmbox(Message*, char*, char*);
extern void rewritembox(Window*, Message*);

extern void mkreply(Message*, char*, char*, Plumbattr*, char*);
extern void delreply(Message*);
extern int write2(int, int, char*, int, int);

extern int mesgadd(Message*, char*, Dir*, char*);
extern void mesgmenu(Window*, Message*);
extern void mesgmenuselect(Window*, Message*);
extern void mesgmenunew(Window*, Message*);
extern void mesgmenureflag(Window*, Message*);
extern int mesgopen(Message*, char*, char*, Message*, int, char*);
extern void mesgctl(void*);
extern void mesgsend(Message*);
extern void mesgdel(Message*, Message*);
extern void mesgmenudel(Window*, Message*, Message*);
extern void mesgmenumark(Window*, char*, char*);
extern void mesgmenumarkdel(Window*, Message*, Message*, int);
extern Message* mesglookup(Message*, char*, char*);
extern Message* mesglookupfile(Message*, char*, char*);
extern void mesgfreeparts(Message*);

extern char* readfile(char*, char*, int*);
extern char* readbody(char*, char*, int*);
extern void ctlprint(int, char*, ...);
extern void* emalloc(uint);
extern void* erealloc(void*, uint);
extern char* estrdup(char*);
extern char* estrstrdup(char*, char*);
extern char* egrow(char*, char*, char*);
extern char* eappend(char*, char*, char*);
extern void error(char*, ...);
extern int tokenizec(char*, char**, int, char*);
extern void execproc(void*);
extern void setflags(Message*, char *);

#pragma varargck argpos error 1
#pragma varargck argpos ctlprint 2

extern Window *wbox;
extern Message mbox;
extern Message replies;
extern char *fsname;
extern int plumbsendfd;
extern int plumbseemailfd;
extern char *home;
extern char *outgoing;
extern char *mailboxdir;
extern char *user;
extern char deleted[];
extern int wctlfd;
extern int shortmenu;
extern int altmenu;